ADAPTEC, INC.
ACB-2002A, ACB-2010A
| 
 Data bus:  | 
 8-bit, ISA  | 
| 
 Size:  | 
 Full-length, full-height card  | 
| 
 Hard drives supported:  | 
 Two MFM ST506 drives  | 
| 
 Floppy drives supported:  | 
 None  | 

| 
 CONNECTIONS  | |
| 
 Function  | 
 Location  | 
| 
 20-pin data cable connector-drive 0  | 
 J0  | 
| 
 20-pin data cable connector-drive 1  | 
 J1  | 
| 
 34-pin control cable connector-hard drive  | 
 J2  | 
| 
 USER CONFIGURABLE SETTINGS - ACB-2002A  | |||
| 
 Function  | 
 Location  | 
 Setting  | |
| 
 »  | 
 Step Rate is: 13 m200 m | 
 AB  | 
 closed  | 
| 
 
  | 
 Step Rate is: 70 m3msec with step code 3  | 
 AB  | 
 open  | 
| 
 »  | 
 Not used  | 
 CD  | 
 open  | 
| 
 »  | 
 Wedge servo enabled  | 
 EF  | 
 closed  | 
| 
 
  | 
 Dedicated track servo enabled  | 
 EF  | 
 open  | 
| 
 »  | 
 Not used  | 
 GH  | 
 open  | 
| 
 »  | 
 Not used  | 
 IJ  | 
 open  | 
| 
 »  | 
 Normal operation  | 
 KL  | 
 open  | 
| 
 
  | 
 Self diagnotics enabled  | 
 KL  | 
 closed  | 
| 
 DRIVE TYPE CONFIGURATION - DRIVE 0 - ACB 2010A  | |||
| 
 Type  | 
 CD  | 
 EF  | 
 MN  | 
| 
 Drive is hard sectored lomega Beta-5  | 
 closed  | 
 open  | 
 closed  | 
| 
 Drive is Syquest 312 or DMA 360 drive  | 
 open  | 
 closed  | 
 N/A  | 
| 
 Drive is soft sectored ST506 type  | 
 open  | 
 open  | 
 N/A  | 
| 
 DRIVE TYPE CONFIGURATION - DRIVE 1 - ACB 2010A  | |||
| 
 Type  | 
 GH  | 
 IJ  | 
 QR  | 
| 
 Drive is hard sectored lomega Beta-5  | 
 closed  | 
 open  | 
 closed  | 
| 
 Drive is Syquest 312 or DMA 360 drive  | 
 open  | 
 closed  | 
 N/A  | 
| 
 Drive is soft sectored ST506 type  | 
 open  | 
 open  | 
 N/A  | 
| 
 BIOS DRIVE TYPE TABLE ACB-2010A  | |||||
| 
 Table #  | 
 Heads  | 
 Cylinders  | 
 Capacity  | 
 MN-Drive 0 QR-Drive 1  | 
 OP-Drive 0 ST-Drive 1  | 
| 
 0  | 
 2  | 
 612  | 
 10.65MB  | 
 closed  | 
 closed  | 
| 
 1  | 
 2  | 
 306  | 
 5.32MB  | 
 closed  | 
 open  | 
| 
 2  | 
 4  | 
 480  | 
 16.71MB  | 
 open  | 
 closed  | 
| 
 3  | 
 4  | 
 306  | 
 10.65MB  | 
 open  | 
 open  | 
| 
 MISCELLANEOUS TECHNICAL NOTES  | 
| 
 Jumpers WX, UV, YZ are Not used. Jumper EF is Not used on Model ACB-2010A.  |